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Animal Models

Simian immunodeficiency virus (SIV) infec­tion in rhesus macaques is valuable for understanding the pathogenesis of cardiac injury associated with retroviral infection in a relevant nonhuman primate model of AIDS [27].

Chronic SIV infection resulted in depressed left ventricular systolic function and an extensive coronary arteriopathy sug­gestive of injury due to cell-mediated immune response [27]. Two-thirds of chroni­cally infected macaques that died of SIV had related myocardial effects. Lymphocyt­ic myocarditis was seen in 9 of 15 macaques and coronary arteriopathy in 9 of 15 (6 alone and 3 in combination with myocardi­tis) upon necropsy. In infected macaques, coronary arteriopathy was extensive, with evidence of vessel occlusion and recanaliza­tion and related regions of myocardial necrosis in four macaques. At necropsy, two animals had marantic endocarditis and one had a left ventricular mural thrombus. Macaques with cardiac pathology were ema­ciated to a greater extent than macaques with SIV and similar periods of infection who did not experience cardiac pathology [25, 27].

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Source: Barbaro Giuseppe, Boccara Franc (eds.). Cardiovascular Disease in AIDS. 2nd edition. — Springer,2009. — 169 p.. 2009
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